Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
040036goodexcellent51excellent
030031goodexcellent41excellent
020028goodexcellent41excellent
010021goodexcellent31excellent
000014excellentexcellent21excellent
230018excellentexcellent21excellent
220028goodexcellent21excellent
2100116moderately pollutedexcellent61excellent
200041goodexcellent41excellent
190058goodexcellent41excellent
180065lightly pollutedexcellent41excellent
170057goodexcellent41excellent
160071lightly pollutedexcellent41excellent
150069lightly pollutedexcellent41excellent
140071lightly pollutedexcellent41excellent
130084lightly pollutedexcellent41excellent
120099lightly pollutedexcellent41excellent
1100114moderately pollutedexcellent51excellent
100047goodexcellent51excellent
090049goodexcellent61excellent
080052goodexcellent71excellent
070047goodexcellent71excellent
060049goodexcellent61excellent
050048goodexcellent61excellent